President Barack Obama has secured enough votes to block a veto override of the Iran nuclear deal.

Retiring Maryland Sen. Barbara Mikulski became the 34th senator to support the deal, which gave Obama the votes that he needed to stop GOP efforts to derail the plan.

"No deal is perfect, especially one negotiated with the Iranian regime," she said in a statement. "I have concluded that this Joint Comprehensive Plan of Action is the best option available to block Iran from having a nuclear bomb. For these reasons, I will vote in favor of this deal."

House Intelligence Committee Chairman Adam Schiff of California said that "people have suffered enough" because of President Trump and that a real leader would re-open the part of the government that has been shuttered since December.